Christopher Heyerdahl (born September 18, 1963) is a Canadian actor who has had roles in many prominent television shows and movies.

Born in the mountains of British Columbia, and is of Norwegian and Scottish descent. Thor Heyerdahl was his father's cousin.

Heyerdahl is known for his role as Leonid in the Are You Afraid of the Dark? episode "The Thirteenth Floor" and as Nosferatu in the episode "Midnight Madness". He played the characters Halling and Wraith commander Todd in Stargate Atlantis, and Pallan in the Stargate SG-1 episode "Revisions". He played H.P. Lovecraft in the movie Out of Mind (1998) and a punk, new at drug dealing, in Cadavres (2009).

Heyerdahl played the part of the demon Alastair in three episodes of Supernatural. He also played the part of Zor-El in the television series Smallville, as well as playing John Druitt and Bigfoot in the series Sanctuary.

He had a role in the feature film New Moon, an adaptation of Stephenie Meyer's second book in her Twilight Saga. In this film, he played a vampire, Marcus, who is part of a powerful Italian family called the Volturi. He reprised that role in both parts of Breaking Dawn, the two part adaption of the fourth book in the Twilight Saga.

Heyerdahl played the part of Dieter Braun on True Blood during the show's 5th season, which aired summer 2012. Heyerdahl also plays the role of 'The Swede' in the AMC television series Hell on Wheels from 2011 through the present.

TRIVIA:

He is a gifted hockey player, and was once asked to play for the Ottawa Senators.